USWDS-Site: Add typography accessibility tests page

[amyleadem]

Summary

• Added typography accessibility tests page.
• Moved compliance-tag.html reference to styleguide.html
  • This allowed the compliance tag to be added to pages with the styleguide layout.
  • Note: This is the same change added to USWDS-Site: Add table accessibility tests page #2538

Important

We need to confirm the changelog dates before merge.

Resources

• Creating accessibility checklists process doc (Google docs 🔒)
• Accessibility checklist spreadsheet (Google sheets 🔒)

Related issue

Closes #2533

Preview link

• Typography - accessibility test page
• Typography main page

Testing and review

1. Confirm that both the main component page and the accessibility tests page has the correct compliance tag at the top.
   1. Confirm that the compliance tag does NOT show up on pages that do not have a related a11y tests page.
2. Confirm that the main component page links to the accessibility tests page in the side navigation.
3. Check that accessibility tests page provides the correct counts for each test status type.
4. Confirm the test checklist summaries and data are accurate.
5. Confirm no visual issues.
6. Confirm there is an appropriate changelog entry on both the main component page and the accessibility tests page.

[amyleadem]

@amycole501 @alex-hull @sarah-sch @finekatie
This is ready for your review. Please take a look at the comments below. Let me know if you need any changes!

[sarah-sch]

In addition to the inline changes I've noted, please update the text above the table at the top to read, "The USWDS team did three tests based on WCAG 2.1 AA success criteria." (Because it's >10 three should be spelled out)

[amycole501]

The page looks good; I added some comments and input but I think it's in good shape for moving forward.

[amyleadem]

@thisisdano @annepetersen This is ready for your review. FYI - I am able to get pa11y tests to pass locally, but they are still crashing here. Going to keep trying to get them to pass here 🏄

🏄🏄🏄 Tests passed! 🏄🏄🏄

Changes made